CN104492214B - A kind of device and method removing acid-mist-removing - Google Patents
A kind of device and method removing acid-mist-removing Download PDFInfo
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- CN104492214B CN104492214B CN201410784301.8A CN201410784301A CN104492214B CN 104492214 B CN104492214 B CN 104492214B CN 201410784301 A CN201410784301 A CN 201410784301A CN 104492214 B CN104492214 B CN 104492214B
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- atomizer
- mist
- deentrainment tower
- horizontal pipe
- cistern
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Abstract
The present invention relates to the device of a kind of acid mist removed and produce in Anodizing Process, including suspended hood, blower fan, horizontal pipe, deentrainment tower, cistern and high-pressure pump, described suspended hood is arranged at above aluminium alloy anode oxide groove, and the import of described blower fan is connected with the outlet of suspended hood and the outlet of blower fan is connected with deentrainment tower by horizontal pipe；Being provided with the first atomizer in described horizontal pipe and be provided with the second atomizer in deentrainment tower, described first atomizer connects with cistern after a high-pressure hydraulic pump with atomizer, and the outlet bottom deentrainment tower connects with cistern；Further relate to a kind of method removing acid-mist-removing applying said apparatus.The present invention uses atomizer to spray water smoke, makes the gas containing acid mist contact fully with water smoke, is then removed by acid mist by mesh mist eliminator, technique, equipment and simple to operate, effective, operating cost is low, is suitable in Anodizing Process the removal of the acid mist produced.
Description
Technical field
The present invention relates to aluminium alloy anode oxide technology, particularly relate to a kind of remove in Anodizing Process produce
The device of acid mist and use the one of this device to go acid mist method.
Background technology
The sufacing Anodic Oxidation of aluminum is most widely used with most successful technology, be also research and development the most deep with
Comprehensively technology.Anodizing of aluminium film has a series of superior performance, such as corrosion resistance, hardness and wear resistance, decoration
Property, organic coating and electrodeposited coating tack, electrical insulating property and the transparency etc., can meet diversified demand, because of
This is described as a kind of omnipotent surface protection film of aluminum.It practice, in an atmosphere, it should say aluminum already at passivation region,
Because one layer of oxide-film the thinnest of aluminum Surface Creation in atmosphere, aluminum is stoped to contact with the continuation of surrounding, so aluminum is very
To also slower than the corrosion rate of pyrite, the thickness of this layer of oxide-film thickens with the prolongation of standing time in air, even may be used
Reach 200nm.Owing to various places Atmospheric components difference is very big, the aluminium atmospheric corrosion speed in different regions and position and form
Also differ greatly.
In order to improve the corrosion resistance of aluminum, chemistry or electrochemical method can be used to generate thicker oxide-film, as Oxalic Acid Method,
Chromic acid method, phosphoric acid method, organic acid system etc..During alumilite process, anode can produce substantial amounts of hydrogen, and hydrogen is not
Disconnected ground overflows from oxidation trough, and hydrogen can be entrained with the acidic liquid in oxidation trough during overflowing, and such liquid is straight
Run in be put in air and can cause atmospheric pollution, it is therefore necessary at the gas that alumilite process groove is spilt over
Reason.
There is presently no and remove the special purpose device producing acid mist in Anodizing Process, in existing relevant purification
In device, the Chinese invention patent of Patent No. ZL200710156046.2 (Authorization Notice No. is CN 100531861C)
" smoke eliminator " discloses a kind of device for purifying smoke, and this device includes filtering with the fog of pipeline concatenation
Device and water filtering device, the front-end pipelines of fog defecator communicates with flue gas, and described atomization defecator includes mist
Changing filtration barrel body, water inlet pipe, sparge pipe and rotary blade, described fog filtration barrel body is provided with air inlet and outlet,
Described water inlet pipe is relative with air inlet, and the described sparge pipe being rotated by actuating device is supported in two bearings seat, its
One end is docked mutually with water inlet pipe, and the other end stretches in atomization filtration barrel body, and its end mouth of pipe is closed, and perisporium is evenly equipped with aperture,
Described rotary blade is co-axially mounted with sparge pipe, is provided with and rotates, with annular array, the blade arranged between rotary blade both ends of the surface,
Below atomization filtration barrel body outlet, pipeline is provided with adjustable damping plate.This invention is by by the flue dust in flue gas and Toxic
Matter is dissolved in water smoke, makes the flue gas of discharge no longer cause environmental pollution, but in this device, water inlet supply water is again at device
Internal rotation by impeller produces water smoke, and water atomization is insufficient, affect contacting of flue gas and water smoke, thus affects in flue gas
Flue dust and the absorption of toxic gas, and this apparatus structure is more complicated, needs two or three to be atomized defecator ability
Reach the clean-up effect needed.
Summary of the invention
The technical problem to be solved is to provide a kind of simple in construction, removal effect good going for prior art
Device except the acid mist produced in Anodizing Process.
Another technical problem to be solved by this invention is to provide and a kind of utilizes said apparatus and effective acid mist to remove
Method.
The present invention solves the technical scheme that first technical problem used: a kind of remove in Anodizing Process
The device of acid mist produced, it is characterised in that include suspended hood, blower fan, horizontal pipe, deentrainment tower, cistern and
High-pressure pump, described suspended hood is arranged at above aluminium alloy anode oxide groove, and the import of described blower fan connects with the outlet of suspended hood
Connect and the outlet of blower fan is connected with deentrainment tower by horizontal pipe；It is provided with the first atomizer in described horizontal pipe and removes
Be provided with the second atomizer in mist tower, described first atomizer and the second atomizer after a high-pressure hydraulic pump with cistern
Connection, and the outlet bottom deentrainment tower connects with cistern.
Contain the air of acid mist above oxidation trough for making suspended hood fully suck, as preferably, described suspended hood is positive with aluminium alloy
Pole oxidation trough is oppositely arranged and the edge of suspended hood exceeds aluminium alloy anode oxide trough rim along 30～50 centimetres.
Losing efficacy for preventing water smoke from encountering horizontal pipe tube wall, as preferably, described first atomizer is narrow angle filled circles
Conical nozzle, and the gas that solid conical is also beneficial to water smoke and band acid mist is fully contacted.
Further, the water-mist outlet centrage of described first atomizer and horizontal angle are 15 degree.
For make by horizontal channel enter deentrainment tower enter gas the most up and with the second downward atomizer out
Water smoke contact, described horizontal pipe leads to deentrainment tower end end and is provided with 90 degree elbows that Open Side Down, and in order to prevent
Only gas directly rushes at and causes liquid entrainment at the bottom of tower, is provided with the gear being oppositely arranged with this horizontal pipe opening in deentrainment tower
Plate.
Deentrainment tower can have various shape, and when deentrainment tower is cylindrical, described second atomizer is Radix Rumicis conical nozzle；
And when deentrainment tower is square, described second atomizer is Radix Rumicis square nozzle, the air of entrance deentrainment tower so can be made
Fully being fully contacted with water smoke so that the air of band acid mist is fully washed, deentrainment tower can have multiple material to make in addition,
Such as plastics, rustless steel, fiberglass etc..
It is provided with the mesh mist eliminator horizontal by 20 degree of angles in described deentrainment tower, so can prevent under high gas velocity
Liquid entrainment, improves acid-mist-removing effect, and the material of mesh mist eliminator can be plastics or rustless steel etc..
The filter for crossing drainage it is provided with between described cistern and high-pressure pump, can be to leading to the first atomizer and the
The water of two atomizers filters, and prevents impurity from blocking atomizer.
The present invention solves the technical scheme of second technical problem: a kind of application said apparatus removes aluminium alloy anode oxide
During the method for acid mist that produces: the air containing acid mist above described aluminium alloy anode oxide groove sucks wind through suspended hood
In machine, contact, then through horizontal tube subsequently into horizontal pipe and with the water smoke of the first atomizer ejection in horizontal pipe
The outlet in road enters deentrainment tower, and the water smoke of the second atomizer ejection that gas is up with downward contacts, and finally removes through silk screen
Day with fog is except discharging after mist；Water in described cistern is filtered and pressurizes through high-pressure pump, after Valve controlling pressure
Sending into the first atomizer and the second atomizer, the water that bottom described deentrainment tower, outlet flows out enters cistern.
In above-mentioned minimizing technology, described high-pressure pump is multistage pump and its maximum amount constant-pressure is 1.5～2.0MPa, described storage
The pH value of the water in pond is 6～8 so that the air after this device processes is neutrality.
Compared with prior art, it is an advantage of the current invention that: the present invention arranges mist respectively in horizontal pipe and deentrainment tower
Change nozzle, and use atomizer to spray water smoke, make the gas containing acid mist be fully contacted with water smoke, then removed by silk screen
Acid mist is removed by day with fog, and apparatus structure is simple, technique, simple to operation, and acid mist removal effect is good, and operating cost is low,
It is suitable in Anodizing Process the removal of the acid mist produced.
Accompanying drawing explanation
Fig. 1 is that the present invention goes aluminium alloy anode oxide groove and suspended hood in acid fog removing device to arrange relation schematic diagram；
Fig. 2 is that the present invention removes acid-mist-removing apparatus structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1～2, a kind of remove the device of acid mist produced in Anodizing Process include suspended hood 2,
Blower fan 3, horizontal pipe 4, deentrainment tower 5, cistern 9 and high-pressure pump 3, wherein suspended hood 2 is arranged at aluminium alloy sun
Above pole oxidation trough 1, the import of blower fan 3 is connected with the outlet of suspended hood 2 and the outlet of blower fan 3 is by horizontal pipe 4
It is connected with deentrainment tower 5, is provided with the first atomizer 7 in horizontal pipe 4 and in deentrainment tower 5, is provided with the second atomizer
8.Water in cistern 9 filters through filter 10 and pressurizes through high-pressure pump 3, sends into the after valve 11 controls pressure
One atomizer 7 and the second atomizer 8, the water that bottom deentrainment tower 5, outlet flows out enters cistern 9.
Suspended hood 2 and aluminium alloy anode oxide groove 1 are oppositely arranged and the edge of suspended hood 2 exceeds aluminium alloy anode oxide groove
1 edge 30～50 centimetres (as shown in d in Fig. 1), so can make suspended hood 2 fully suck above oxidation trough 1 containing acid mist
Air.First atomizer 7 is narrow angle solid conical nozzle, and the water-mist outlet center of the first atomizer 7
Line and horizontal angle are 15 degree, can prevent water smoke from encountering horizontal pipe 4 tube wall and losing efficacy, and make water smoke and band acid
The gas of mist is fully contacted.For make by horizontal channel 4 enter the gas of deentrainment tower 5 the most up and with downward second
Atomizer 8 water smoke out is fully contacted, horizontal pipe 4 with lead to deentrainment tower 5 end end and be provided with that Open Side Down
90 degree of elbows 41, and cause liquid entrainment for preventing gas from directly rushing at the bottom of deentrainment tower 5 tower, deentrainment tower 5 is provided with
The baffle plate 12 being oppositely arranged with this horizontal pipe 4 opening.In the present embodiment, deentrainment tower 5 is cylindric, therefore the second atomization
Nozzle 8 is Radix Rumicis conical nozzle, and certain deentrainment tower can also be other shapes, such as when deentrainment tower is square, the
Two atomizers are Radix Rumicis square nozzle.For preventing liquid entrainment under high gas velocity, thus improve except fog effect, deentrainment tower
The mesh mist eliminator 6 (as shown in α angle in Fig. 2) horizontal by 20 degree of angles it is provided with in 5.
When applying this device to remove acid-mist-removing, the water in cistern 9 filters through filter 10 and pressurizes through high-pressure pump 3, warp
Valve 11 sends into the first atomizer 7 and the second atomizer 8 after controlling pressure.Above aluminium alloy anode oxide groove 1
Air containing acid mist in suspended hood 2 sucks blower fan 3, subsequently into horizontal pipe 4 and with the first mist in horizontal pipe 4
Changing the water smoke contact of nozzle 7 ejection, then the outlet through horizontal pipe 4 enters deentrainment tower 5, and gas is up and downward
The water smoke contact of the second atomizer 8 ejection, finally discharges, water outlet bottom deentrainment tower 5 after mesh mist eliminator 6 is except mist
The water that mouth flows out enters cistern 9, forms waterway circulating.The present embodiment mesohigh pump 3 is that multistage pump and its maximum amount are fixed
Pressure is 1.5～2.0MPa, and the pH value of the water in cistern 9 is 6～8, can by water add mass content be 10～
The NaOH solution of 20%, stirs, and makes pH value be maintained at 6～8.When the application present invention carries out acid mist removal, aluminum
In air above alloy anode oxidation trough, sulphuric acid mist content is 1500～2500mg/M2, the sky discharged by deentrainment tower after process
In gas, sulphuric acid mist content is 20～31mg/M2, acid mist removal effect is notable.
Claims (9)
1. remove the device producing acid mist in Anodizing Process for one kind, it is characterised in that include suspended hood,
Blower fan, horizontal pipe, deentrainment tower, cistern and high-pressure pump, described suspended hood is arranged on aluminium alloy anode oxide groove
Side, the import of described blower fan is connected with the outlet of suspended hood and the outlet of blower fan is connected with deentrainment tower by horizontal pipe；Institute
Being provided with the first atomizer in stating horizontal pipe and be provided with the second atomizer in deentrainment tower, described horizontal pipe leads to and removes
Mist tower end end is provided with 90 degree of elbows that Open Side Down, and is provided with relative with this horizontal pipe opening in deentrainment tower
Baffle plate, described first atomizer and the second atomizer connect with cistern after a high-pressure hydraulic pump, and bottom deentrainment tower
Outlet connect with cistern.
2. removal Anodizing Process as claimed in claim 1 produces the device of acid mist, it is characterised in that
Described suspended hood and aluminium alloy anode oxide groove are oppositely arranged and the edge of suspended hood exceeds aluminium alloy anode oxide trough rim edge
30～50 centimetres.
3. device as claimed in claim 1, it is characterised in that described first atomizer is narrow angle solid conical
Nozzle.
4. device as claimed in claim 3, it is characterised in that the water-mist outlet centrage of described first atomizer
It it is 15 degree with horizontal angle.
5. device as claimed in claim 1, it is characterised in that described deentrainment tower is cylindrical, described second atomization
Nozzle is Radix Rumicis conical nozzle；Or, described deentrainment tower is square, and the most described second atomizer is the square spray of Radix Rumicis
Mouth.
6. the device as described in any claim in Claims 1 to 5, it is characterised in that arrange in described deentrainment tower
There is the mesh mist eliminator horizontal by 20 degree of angles.
7. device as claimed in claim 6, it is characterised in that be provided with between described cistern and high-pressure pump for
Cross the filter of drainage.
8. the removal Anodizing Process of an application device as claimed in claim 7 produces the side of acid mist
Method, it is characterised in that the air containing acid mist above described aluminium alloy anode oxide groove is in suspended hood sucks blower fan, so
Rear entrance horizontal pipe also contacts with the atomized water of the first atomizer ejection in horizontal pipe, then going out through horizontal pipe
Mouth entrance deentrainment tower, the atomized water of the second atomizer ejection that gas is up with downward contacts, finally through mesh mist eliminator
Except discharging after mist；
Water in described cistern is filtered and pressurizes through high-pressure pump, sends into the first atomization after Valve controlling pressure
Nozzle and the second atomizer, the water that bottom described deentrainment tower, outlet flows out enters cistern.
9. method as claimed in claim 8, it is characterised in that described high-pressure pump is multistage pump and its maximum amount level pressure
Power is 1.5～2.0MPa, and the pH value of the water in described cistern is 6～8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784301.8A CN104492214B (en) | 2014-12-17 | 2014-12-17 | A kind of device and method removing acid-mist-removing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784301.8A CN104492214B (en) | 2014-12-17 | 2014-12-17 | A kind of device and method removing acid-mist-removing |
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| Publication Number | Publication Date |
|---|---|
| CN104492214A CN104492214A (en) | 2015-04-08 |
| CN104492214B true CN104492214B (en) | 2016-08-24 |
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| CN201410784301.8A Active CN104492214B (en) | 2014-12-17 | 2014-12-17 | A kind of device and method removing acid-mist-removing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106466544A (en) * | 2015-08-18 | 2017-03-01 | 中国科学院上海应用物理研究所 | The cleaning system of dusty gas |
| CN111455415B (en) * | 2020-04-07 | 2022-05-10 | 圣达电气有限公司 | Anode slot air draft device of crude foil machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5822395A (en) * | 1981-08-04 | 1983-02-09 | Sakae Tajima | Apparatus for removing aluminum in electrolyte |
| CN202460442U (en) * | 2011-12-21 | 2012-10-03 | 河南海力特机电制造有限公司 | Acid mist absorption processing device of high-pressure water mist |
| CN202762294U (en) * | 2012-09-13 | 2013-03-06 | 河南开元金属制品有限公司 | Acid mist purification device |
| CN202909585U (en) * | 2012-11-16 | 2013-05-01 | 株洲宏信特种建材有限公司 | Novel sprinkling dust removal system |
| CN203469723U (en) * | 2013-09-05 | 2014-03-12 | 上海超惠通风环保设备有限公司 | Miniaturized bipolar treatment all-in-one machine of acidic dust exhaust gas |
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